@nevel we built the vault Linux binary with musl libc so I’m hopeful this will work on something like a Rasberry pi - do let us know if this is the case if you get to try (I don’t have one to test with).
With the cli clients we hit some problems trying to build them with musl libc and we’ll need to spend more time on that, but definitely something on our to do list.
See the musl libc mentions in the dev update from August 15th SAFE Network Dev Update - August 15, 2019
EDIT - @nice tried the vault on a pi and it didn’t work, though @happybeing suggests compiling for ARM and even has instructions New Release: Vault Phase 1 (real vault) - #24 by happybeing